Y301-444 4DI + 4DO + 4AI Serial I/O Module
Y301-444 provides 4 digital inputs, 4 SPDT relay outputs, and 4 analog inputs for Modbus RTU serial I/O expansion.
- Channels
- 4 DI + 4 DO + 4 AI
- Serial interface
- RS485 or RS232; select when ordering
- Protocol
- Modbus RTU slave
- Supply voltage
- 5–36 VDC
Price for the selected configuration.
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Overview
Y301-444 provides 4 digital inputs, 4 SPDT relay outputs, and 4 analog inputs for Modbus RTU serial I/O expansion.
Typical applications
Equipment monitoring and relay control in industrial control cabinets.
How it works & selection
Ordering options
Select RS485 or RS232. Select the 4–20 mA or 0–10 V analog input version; 4–20 mA is the default.
Technical specifications
| Channels | 4 DI + 4 DO + 4 AI |
|---|---|
| Serial interface | RS485 or RS232; select when ordering |
| Protocol | Modbus RTU slave |
| Supply voltage | 5–36 VDC |
Signals and communication
4 opto-isolated dry/wet contact inputs; 4 SPDT relay outputs; 4 analog inputs, 0–10 V or 4–20 mA (ordered version). Modbus RTU over RS485 or RS232.
Electrical
Supply: 5–36 VDC. Relay contacts: 277 VAC / 10 A or 28 VDC / 10 A. DI sampling: 100 Hz; debounce: 5–255 ms.
Mechanical and environment
145 × 90 × 40 mm; DIN rail or screw mounting; −40 to +85 °C; 5–95% RH non-condensing.
Package & resources
Package contents
Module, digital quick reference guide, and warranty card. Optional accessories include a DIN clip, USB-to-RS485 converter, 12/24 VDC power supply, and shielded RS485 wiring kit.
